Improvement in lubricators



UNITED STATES EnANooIs Ecusson, on PARIS, FRANCE.

IMPROVEMENT IN LUBPtICATORS. M

Specification forming part of Letters Patent No. 47,367', datedApril 18, 1865.

To @ZZ whom it may concern.-

Be it known that I, FRANqoIs BREssoN,of the city of Paris, in the Empire of France, have invented certain new and useful Improvements in Lubricators; and I do hereby declare that the following is a full, clear, and exact description of the construction and `operation of the same, reference being had to the accompanying drawings, in which- Figure l represents a top view of said apparatus. Figs. 2 and 3 represent vertical central sections through the same.

The apparatus for which I ask Letters Patent of the United States serves to lubricate the turning shafts and other pieces of machinery in motion. It is founded on two principles of natural philosophy-first, uniform of glass, china, or metal, and its size should be in proportion to the diameter of the shaft to belubricated, so that the lubricating-fluid may last a sufficient length of time. It is closed at its upper end by a stopper of glass,

, cork, india-rubber, or any other elastic material, or any material covered with an elastic material, and said vessel is filled with the lubricating material by removing the stopper B and pouring the same through the opening, after which the stopper is replaced. To the lower part of the vessel A is secured a brass tube, I, which is open at its lower end, and the lubricatingliquid escapes through said tube. The length of this tube is not important, but depends on the manner in which the lubricator is applied vto the shaft T, which is to be lubricated. Usually in the shield R, which covers the turning sh aft- I pierce a hole, into which I insert `the tube I, and adjust it in such a manner that the lower end of the tube I is as close to the circumference of said .shaft as it can be set without coming in contact with the same. Through the stopperB,

I pass a small pipe, b c, of metal or glass,

which extends down into the pipe I. Its lower end, c, extends to within one-eighth or a quarter of an inchto the lower end of the tube I. The piperb o may be simply passed through the stopper B without securing it therein, so that its position can be better adjusted. When y the pipe b c is raised,the discharge of the oil is increased, when it is depressed, the dis` charge is decreased, and when thelower end,

c, of the pipe is even with the lower end, i, of i the pipe I, the How of the oil is altogetherarrested. It isV well known that the oil cannot escape from the reservoirA except when air is admitted to it; but the air can enter it by the pipe b c, only passingfrom the upper o1 ifice, b, and escaping at the loweraperture,1c,y` whence, passing through the oil, it rises to the surface of the oil in the vessel A. 'The liquid column that determines the amount of oil dis-- charged is comprised between the two lower orifices, c and t' consequently, the more the i length of this column is reduced the lessoil arrested in its motion, as otherwise there would be a waste of oil. I obtain this result by set,-

ting the end t' of the tubeI in such close a proximity to the circumference of lthe shaft to be lubricated that a drop of oil collecting at the former will be prevented from ilowing when said shaft is at rest; but as soon as the latter turns, the oil, by reason of its adhesive nature,

will be drawn out, and consequently lubricate` the shaft, the pressure of the air being ad-` justed to such a degree that'said adhesive` power is greater than the former, and the op` eration of lubricating therefore continues as long as the shaft T is in motion.

Such is the automatic lubricator forwhich I ask a patent; and I here observe that in some' cases I place fat the `-lowerorilice of the-` tube I a cap, e, provided with a small aperture, i

a, shown at Fig. 3. This cap is forthe purpose of reducing the flow of oiland aiding inl the formation of the drop in the cavity between the cap e and shaft T, for as soon as the shaft` T stops said cavity becomes filled "with oil,

and thus its discharge is prevented.

Having thus fully described the nature of my invention, what I claim herein as new, and desire to secure by Letters Patent, is-

l. The combination of the airltight vessel A with pipes b c and I, substantially as and for the purposes specified.

2. The combination of the air-tight vessel vA and stopper B and pipes b c and I, substrintialiy as and for the purposes described.

3. In combination with the pipes b c and I, When applied to the vessel A, the concave cap e, snbstantially as and for the scribed.

F. BRESSON.

fitness/es:

E. SHERMAN GoULD, DAVID PrUs FULLER.

purposes de# 

